Portion of a display panel with a graphical user interface



The sole FIGURE is a front view of a portion of a display panel with a graphical user interface showing features of our new design.

The diagonal lines that are part of the claimed design are meant to portray the illusion of contrasting surfaces.

The broken lines illustrate environmental structure, namely, the text, borders, icons, and the display panel of a communications terminal surrounding all of the illustrated features, and form no part of the claimed design. 

CLAIM The ornamental design for a portion of a display panel with a graphical user interface, as shown and described. 